Home / 28,028.88-42,060.96-11,389.32

Finding the Fourth Proportional to 28,028.88, 42,060.96 and 11,389.32

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Solution

The fourth proportional to 28,028.88, 42,060.96 and 11,389.32 is: 17,091.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,028.88 : 42,060.96 = 11,389.32 : x
  2. Step 2: Convert to fraction form
    28,028.88/42,060.96 = 11,389.32/x
  3. Step 3: Cross multiply
    28,028.88x = 42,060.96 × 11,389.32
  4. Step 4: Simplify right side
    28,028.88x = 479,045,732.95
  5. Step 5: Solve for x
    x = 479,045,732.95/28,028.88
  6. Step 6: Final answer
    x = 17,091.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.